CONCENTRATED SOLAR THERMAL REACTOR

A solar concentrator reactor system and method of use for high temperature thermochemical processes. In one embodiment, the solar concentrator reactor system produces a thermochemical reaction of irradiated particles within an enclosed vessel volume of a solar concentrator reactor. In one aspect, the solar concentrator reactor system uses a solar concentrator to irradiate particles of a particle stream within an enclosed vessel volume of a solar concentrator reactor. The thermochemical reaction yields a chemical change of the feedstock and/or phase transition of the feedstock such as the production of a molten reacted material from a solid particulate feed. In one embodiment, the particles are a lunar regolith and the thermochemical reaction yields oxygen.